NPCs and Interactions - Mastering Unity 2D Game Development - page 243

Next, we need to calculate the scaling factor for the image for each conversation line, just
in case we are using different sizes of textures for each character in the conversation. So,
update the DisplayConversation Coroutine method with the following code:
IEnumerator DisplayConversation(Conversation conversation)
{
talking = true;
foreach (var conversationLine in
conversation.ConversationLines)
{
currentConversationLine = conversationLine;
conversationTextWidth =
currentConversationLine.ConversationText.Length *
fontSpacing;
scalledTextureRect = new Rect(
currentConversationLine.DisplayPic.textureRect.x /
currentConversationLine.DisplayPic.texture.width,
currentConversationLine.DisplayPic.textureRect.y /
currentConversationLine.DisplayPic.texture.height,
currentConversationLine.DisplayPic.textureRect.width
/ currentConversationLine.DisplayPic.texture.width,
currentConversationLine.DisplayPic.textureRect.height
/ currentConversationLine.DisplayPic.texture.height);
yield return new WaitForSeconds(3);
}
talking = false;
yield return null;
}
Lastly, we just need to update the OnGUI method to make space for the image using the
offset method and then add it to the draw list as follows:
void OnGUI()
{